4991055841 has 2 divisors, whose sum is σ = 4991055842. Its totient is φ = 4991055840.

The previous prime is 4991055803. The next prime is 4991055847. The reversal of 4991055841 is 1485501994.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4871481616 + 119574225 = 69796^2 + 10935^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4991055841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4991055791 and 4991055800.

It is not a weakly prime, because it can be changed into another prime (4991055847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2495527920 + 2495527921.

It is an arithmetic number, because the mean of its divisors is an integer number (2495527921).

Almost surely, 2^4991055841 is an apocalyptic number.

It is an amenable number.

4991055841 is a deficient number, since it is larger than the sum of its proper divisors (1).

4991055841 is an equidigital number, since it uses as much as digits as its factorization.

4991055841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 259200, while the sum is 46.

The square root of 4991055841 is about 70647.4050549629. The cubic root of 4991055841 is about 1708.9557183121.

The spelling of 4991055841 in words is "four billion, nine hundred ninety-one million, fifty-five thousand, eight hundred forty-one".